Specifications

Safety
975-0581-01-01 ix
This manual is for use by qualified personnel only
6. Remove fuses -F6 and -F7 from their fuseholders to further isolate the
Auxiliary AC input power. See Figure ii for the location of the fuses.
7. Using a voltmeter with minimum ratings of 1000 Vdc and 600 Vac, tested on
a known voltage source before use, verify that all incoming energy sources
are de-energized by checking for zero voltage at all of the following locations
as shown in Figure ii. In all cases, measure between the terminals listed, and
from each of the terminals to ground. The voltage in all cases should be zero
if all sources have been properly de-energized.
a) AC output voltage: Measure between the terminals of fuseholder -F35
(terminals -F35:1, -F35:3, and -F35:5 in the +H0 enclosure) and from
each terminal to ground.
b) PV input voltage: Measure on the DC input bus bars physically located
below the DC disconnect switch (-Q11) by inserting the meter probes
through the slotted insulator to contact the bus bars (see DC bus- and
DC bus+ in Figure ii). Measure the voltage between the busbars, and
from each busbar to ground.
c) Auxiliary AC input voltage: Measure the voltage between terminals
-X2:L1 and -X2:L2, between -F6-1 and -F7-1, and from each of those
terminals to ground.
d) UPS voltage: For Xantrex GT500 E & Xantrex GT630 E equipped with a
Xantrex UPS check the UPS output voltage at terminals -X2:24 and -X2:26,
terminals -X4:1 and -X4:8, and from each of those terminals to ground.
The above procedure de-energizes and locks-out power from all sources except
the PV input and AC output circuits located behind guards in the DC interface
enclosure and in the lower part of the AC interface enclosure. If the installation,
service, or maintenance task to be performed requires removal of those guards,
you must perform the following additional steps.
To lock-out and tag-out sources behind the AC or DC guards:
8. Ensure you have followed steps 1-7 above.
9. Open, lock-out, and tag-out the AC output (grid) circuit at its external
disconnect switch provided as part of the installation.
10. Open, lock-out, and tag-out all incoming PV input circuits at the external
disconnect means provided as part of the installation.
11. Using a voltmeter with minimum ratings of 1000 Vdc and 600 Vac, tested on
a known voltage source before use, verify that all incoming energy sources
are de-energized by checking for zero voltage at all of the following locations
as shown in Figure ii:
a) AC output voltage: Check between the AC output field-wiring terminals
L1, L2, L3 at the bottom of the AC interface enclosure, and from each
terminal to ground.
b) PV input voltage: Check at the PV input field wiring terminals PV+ and
PV- at the bottom of the DC interface enclosure. Measure the voltage
between PV+ and PV-, and from each terminal to ground.